Evaluation of residual stress gradients in ductile cast iron using critical refracted longitudinal (Lcr) wave technique /
allowed for an evaluation of the annealing procedure used.
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1995.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | allowed for an evaluation of the annealing procedure used. cast iron during the cooling phase of a casting process. A castings. Residual stresses are likely to develop in ductile Critically refracted longitudinal (LCR) waves have been different modularity and two were annealed while one was not. increment. This provided data for the mapping of velocity indicate compressive stresses on the surface. The data also investigated as a possible technique for the evaluation of LCR probe fabricated for previous research was used to make millimeters and the LCR velocities were taken -at each relieved by the sawcutting. The strain gage data was found to strain gages were attached to similar samples and the samples stresses are still present in the bars tested. support the LCR velocity map to an extent. Both sets of data the residual stress gradients present in ductile iron The results showed that even after full annealing remnant The samples were milled at increments of approximately two The strain gages indicated that residual stresses were the velocity measurements. The samples investigated were of To confirm the presence of the residual stress gradient, versus depth which represents the residual stress gradient. were saw cut with the intent to relieve residual stresses. |
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| Item Description: | "Major subject: Mechanical Engineering". In title, subscripts are used. Vita. |
| Physical Description: | x, 57 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references. |